Seeded growth of single-crystal two-dimensional covalent organic frameworks

Austin M. Evans, Lucas R. Parent, Nathan C. Flanders, Ryan P. Bisbey, Edon Vitaku, Matthew S. Kirschner, Richard D Schaller, Lin X. Chen, Nathan C. Gianneschi, William R. Dichtel

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Polymerization of monomers into periodic two-dimensional networks provides structurally precise, layered macromolecular sheets that exhibit desirable mechanical, optoelectronic, and molecular transport properties. Two-dimensional covalent organic frameworks (2D COFs) offer broad monomer scope but are generally isolated as powders comprising aggregated nanometer-scale crystallites. We found that 2D COF formation could be controlled using a two-step procedure in which monomers are added slowly to preformed nanoparticle seeds. The resulting 2D COFs are isolated as single-crystalline, micrometer-sized particles. Transient absorption spectroscopy of the dispersed COF nanoparticles revealed improvement in signal quality by two to three orders of magnitude relative to polycrystalline powder samples, and suggests exciton diffusion over longer length scales than those obtained through previous approaches. These findings should enable a broad exploration of synthetic 2D polymer structures and properties.

Original languageEnglish
Pages (from-to)52-57
Number of pages6
JournalScience
Volume361
Issue number6397
DOIs
Publication statusPublished - Jul 6 2018

Fingerprint

Monomers
Single crystals
Powders
Nanoparticles
Absorption spectroscopy
Crystallites
Optoelectronic devices
Transport properties
Seed
Polymers
Polymerization
Crystalline materials
LDS 751

ASJC Scopus subject areas

  • General

Cite this

Evans, A. M., Parent, L. R., Flanders, N. C., Bisbey, R. P., Vitaku, E., Kirschner, M. S., ... Dichtel, W. R. (2018). Seeded growth of single-crystal two-dimensional covalent organic frameworks. Science, 361(6397), 52-57. https://doi.org/10.1126/science.aar7883

Seeded growth of single-crystal two-dimensional covalent organic frameworks. / Evans, Austin M.; Parent, Lucas R.; Flanders, Nathan C.; Bisbey, Ryan P.; Vitaku, Edon; Kirschner, Matthew S.; Schaller, Richard D; Chen, Lin X.; Gianneschi, Nathan C.; Dichtel, William R.

In: Science, Vol. 361, No. 6397, 06.07.2018, p. 52-57.

Research output: Contribution to journalArticle

Evans, AM, Parent, LR, Flanders, NC, Bisbey, RP, Vitaku, E, Kirschner, MS, Schaller, RD, Chen, LX, Gianneschi, NC & Dichtel, WR 2018, 'Seeded growth of single-crystal two-dimensional covalent organic frameworks', Science, vol. 361, no. 6397, pp. 52-57. https://doi.org/10.1126/science.aar7883
Evans AM, Parent LR, Flanders NC, Bisbey RP, Vitaku E, Kirschner MS et al. Seeded growth of single-crystal two-dimensional covalent organic frameworks. Science. 2018 Jul 6;361(6397):52-57. https://doi.org/10.1126/science.aar7883
Evans, Austin M. ; Parent, Lucas R. ; Flanders, Nathan C. ; Bisbey, Ryan P. ; Vitaku, Edon ; Kirschner, Matthew S. ; Schaller, Richard D ; Chen, Lin X. ; Gianneschi, Nathan C. ; Dichtel, William R. / Seeded growth of single-crystal two-dimensional covalent organic frameworks. In: Science. 2018 ; Vol. 361, No. 6397. pp. 52-57.
@article{dda028fa0d604de797591059e4e49bc4,
title = "Seeded growth of single-crystal two-dimensional covalent organic frameworks",
abstract = "Polymerization of monomers into periodic two-dimensional networks provides structurally precise, layered macromolecular sheets that exhibit desirable mechanical, optoelectronic, and molecular transport properties. Two-dimensional covalent organic frameworks (2D COFs) offer broad monomer scope but are generally isolated as powders comprising aggregated nanometer-scale crystallites. We found that 2D COF formation could be controlled using a two-step procedure in which monomers are added slowly to preformed nanoparticle seeds. The resulting 2D COFs are isolated as single-crystalline, micrometer-sized particles. Transient absorption spectroscopy of the dispersed COF nanoparticles revealed improvement in signal quality by two to three orders of magnitude relative to polycrystalline powder samples, and suggests exciton diffusion over longer length scales than those obtained through previous approaches. These findings should enable a broad exploration of synthetic 2D polymer structures and properties.",
author = "Evans, {Austin M.} and Parent, {Lucas R.} and Flanders, {Nathan C.} and Bisbey, {Ryan P.} and Edon Vitaku and Kirschner, {Matthew S.} and Schaller, {Richard D} and Chen, {Lin X.} and Gianneschi, {Nathan C.} and Dichtel, {William R.}",
year = "2018",
month = "7",
day = "6",
doi = "10.1126/science.aar7883",
language = "English",
volume = "361",
pages = "52--57",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "6397",

}

TY - JOUR

T1 - Seeded growth of single-crystal two-dimensional covalent organic frameworks

AU - Evans, Austin M.

AU - Parent, Lucas R.

AU - Flanders, Nathan C.

AU - Bisbey, Ryan P.

AU - Vitaku, Edon

AU - Kirschner, Matthew S.

AU - Schaller, Richard D

AU - Chen, Lin X.

AU - Gianneschi, Nathan C.

AU - Dichtel, William R.

PY - 2018/7/6

Y1 - 2018/7/6

N2 - Polymerization of monomers into periodic two-dimensional networks provides structurally precise, layered macromolecular sheets that exhibit desirable mechanical, optoelectronic, and molecular transport properties. Two-dimensional covalent organic frameworks (2D COFs) offer broad monomer scope but are generally isolated as powders comprising aggregated nanometer-scale crystallites. We found that 2D COF formation could be controlled using a two-step procedure in which monomers are added slowly to preformed nanoparticle seeds. The resulting 2D COFs are isolated as single-crystalline, micrometer-sized particles. Transient absorption spectroscopy of the dispersed COF nanoparticles revealed improvement in signal quality by two to three orders of magnitude relative to polycrystalline powder samples, and suggests exciton diffusion over longer length scales than those obtained through previous approaches. These findings should enable a broad exploration of synthetic 2D polymer structures and properties.

AB - Polymerization of monomers into periodic two-dimensional networks provides structurally precise, layered macromolecular sheets that exhibit desirable mechanical, optoelectronic, and molecular transport properties. Two-dimensional covalent organic frameworks (2D COFs) offer broad monomer scope but are generally isolated as powders comprising aggregated nanometer-scale crystallites. We found that 2D COF formation could be controlled using a two-step procedure in which monomers are added slowly to preformed nanoparticle seeds. The resulting 2D COFs are isolated as single-crystalline, micrometer-sized particles. Transient absorption spectroscopy of the dispersed COF nanoparticles revealed improvement in signal quality by two to three orders of magnitude relative to polycrystalline powder samples, and suggests exciton diffusion over longer length scales than those obtained through previous approaches. These findings should enable a broad exploration of synthetic 2D polymer structures and properties.

UR - http://www.scopus.com/inward/record.url?scp=85048933871&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85048933871&partnerID=8YFLogxK

U2 - 10.1126/science.aar7883

DO - 10.1126/science.aar7883

M3 - Article

AN - SCOPUS:85048933871

VL - 361

SP - 52

EP - 57

JO - Science

JF - Science

SN - 0036-8075

IS - 6397

ER -